Smash protector



Aug. 3 1926."

L. N. LA FAYETTE SMASH PROTECTOR Filed April 26. ,1925 sheets-sheet 1 Aug. 3 1926. L. A FAYETTE 1,594,462

SMASH PROTECTOR Filed April 26 1923 6 Sheets-Sheet 5 Aug. 3 1926.

- L. N LA FAYETTE 'SMA'SH PROTECTOR Filed April '26 1923 a Sheets-Sheet 4 Patented Aug. 3, 1926.

UNITED srarss LOUIS 1v. LA FAYETTE, or rnxmocrmrmssacnusnrrs.

SMASH rno'rrio ron.

Application filed April as, 1923. Serial No. 634,812.

My improvement relates to a mechanical smash protector for use in a fancy loom which, when two shuttles are in opposite shuttle boxes at the two ends of the shuttle race and the lay is in its beating-up position, will operate the stop motion before the next throw of the shuttles begins. Thus the stop motion operates before either shuttle starts to leave its box and no smash will take place.

My'invention will be understood by reference to the drawings in which it is shown in its preferredform. As the mechanism for operating the lay, and thestop motion may be of any suitable kind they are not shown.

Figure 1 is a cross section of thelay and breast beam in beating-up position, my im proved mechanism being shown in side elevation and in normal position, the shuttle box shown being empty. I

Fig. 2 is a similar view showing the position of my mechanism when shuttles are in opposite boxes and the parts are set to 0p crate the stop motion when the lay starts backward.

Fig. 8 is a similar view in which the lay has moved backward a short distance (not sufficiently far to operate the picker staffs) and the lay is locked to the breast beam and the stop motion has been operated. a

Fig. 4 is a plan of the parts when in the position shown in Fig. 3.

Fig. 5 is an elevation of the parts attached to the lay in normal position, and i Fig. 6 is an elevation of the parts attached to'the breast beam in normalposition. In the operation of my mechanism, when there are shuttles in two opposlte boxes, as

the lay approaches the breast beam it setsthe mechanism so that as the lay begins to move backward, parts on the lay andbreast beam engage momentarily and operate the stop motion and at the same time the layis locked in approximately its forward posi- 2 is the lay carrying on its top the shuttle tion from which it is again released by the releasing of the stop motion. I

In the drawings, 1 is the breast beam and race as usual. 3 are the shuttle boxes and 1 are the shuttle binders, or being a shuttle. 5 are fingers each mounted fixedly on one of the two shafts 6, '61, which shafts are in line.

Each shaft has aspring 7 wound round it and connected thereto, each spring being arranged so that its shaft willhold its finger 5 against the binder' l. Y a

7 These shafts are supported in bearings 9 and'lO. The bearings 9 are supported on the lay sword 11 and the bearings 10 are supported on a plate 12 which is attached to the lay; Collars 13are attached to the shafts 6 .and 61 to hold them in proper position in the bearings. The shafts 6, 61 carry arms 8 at their opposing ends, which are attached at their outer ends by links 14 to holders 15, which holders are pivoted to the bracket 16 mounted on the lay. 17 is an arm shown in .the form of a loop which has projecting from it a rod 18 mounted in an arm 181 on a stud 19, which is supported in bearings 20 hung below the lay beam 2. i o

It will be seen by reference to Fig. 1 that when the shuttle boxes are empty so that the binders are in their. normal position, the fingers 5 being in the position shown in Fig. 1, the holders 15 will support the rod 18 and when both holders drop into the position shown in Fig. 2 the rod 18 drops carrying with it the loop 17, and this only takes place 1 when there isashuttle in each box, the loop being thus brought into position to engage cooperating parts on the breast beam which cause the operation fof the stop motion.

The stop motion maybe'of any convenient construction and isattached to the shaft 21 mounted between the supports 22 of the breast beam 1 in theusual way, and the stop motion is operatedby meansofanarm 23 attached'to the shaft 21 so thatv when; the" lever 25 carried by astud 26 on a bracket 27 attached to the breast beam 1, this con struction being such that the depression of the hook lever 25 will cause also the depres sion of the arm: 23.

The hook lever 25 is depressedby engagement with the loop piece 17 The rod l8is normally supported by the holders 15. When a shuttle enters its box and operates the finger by movingthe binder outwardly it, depresses its hold-er 15,.but the other holder not being depressed the loop still restud 24 a link 27 which is attached to a lock" lever 28 pivoted at 29 to the bracket 30. This lock lever and its functions are shown particularly in Figs. 4 and 6. 31 is aslide the position" of which is controlled by a spring 32 attached to the T-lever 33 pivoted the slide to. its normal position.

the machine will again. start. up, a handle a l to the bracket 34:, this lever 33 carrying a cam arm I In Fig. 6 the partsare shown in their normal position wh'en the loom is running. 36- is a plate attached to the breast beam 1 and having in it arecess 37. The plate 3'6 also, has in it ways in which the slide 31 runs: and when the loom is running under ordinary conditions the parts are as shown in Fig. 6 The slide 31. has also anopening slightly narrower than the opening 3'7, these openings normally registering as shown in Fig. 6. Normally the lock. lever 28 en gages a notch 38 in the slide 31,as indicated in Figs. 1 and 2. The drag of the loop 18 over the toe of the hook lever 25- depresses the outer end of the hook lever and pulls the lower end of the lock lever 28 by means of .the'link 2'. against the: force of the spring 39 and disengagesit from the slide so that the slide is thrown to the left (see Fig. 6) by thev spring 32 acting through the T-l'ever 33 and takes the position shown in Fig. 4a to engage: the hook 450' (see Fig. 4:). Thishook. is made fast to the lay beam by bolts 41 so that. it is immovable-except as it is moved. with the lay and. is located on the lay beam so that it will reciprocate through the opening 3'3 and the correspond ing; opening in. the slide 3-1. VVh-en, however, the hook lever 25' is depressed by engaging with the loop 17 sufficient movement is given to the lock lever to: disengage it from the slide 31 so that the slide is pulled back by the spring 32 into engagement with the hook 40,.thus holding the-lay fromfurther rearward movement (see Fig. 4);.

To the shaft 21 is: attached also the arm .42 new the T-l ever 33 is attached a cam arm- in position to be struck. by the arm 42 when the machine reset and. so return It may also assist in operating the stop motion by engaging the 42 when the: lock lever 28' releases the slide 31 and: the spring. 32'

acts to turn; the 'lT-leveri 3'3 and so moves the cam lever: 35-.

To release or reset. the stop motion so that is mounted on shaft 21, which being moved slightly to turn the shaft 21, resets the stop motion in the usual way and also causes the engagement of the arm 42 with the cam arm 35 (see Fig. 6) so that the T-lever will reset the slide 31 in the position shown in Fig; 6 and Fig. 3. The lever 28 is again thrown into the notch 38 by the spring 39 to hold' the slide out of engagement with the hook 40 as the lay moves under normal conditions. The end of the arm 23 lifts the stud 24: and hook lever 25 into normal position. The normal position of the hook lever 25 is controlled by the spring 39' acting through the link 27 so that, except when the loo-p 17 engages it, it normally stands in substantially the position shown in Figs. 2 and 3 yielding somewhat as the loop 17 when in its lower position passes over it. I

Fromthe above it will be seen that when one shuttle 0c is. in the shuttle box one only of the holders will be dropped, but

when shuttles are in opposite shuttle boxes both holders will be dropped so that the loop 17 drops over the hook lever 25 as shown in Fig. 2 and; engages the toe of the hook lever 25 as the lay starts back, thus pulling the lock. lever 28 out from the notch 38' and allowing the slide to move under the influence. of the spring 32 acting through the T-lever to which the slide is pivoted, this movement taking place after the hook 40 has moved through the opening 37. The hook and lay are thus locked to the breast beam. v

It will be evident to those skilled? inthe 1 art that my invention may be otherwise embodied. It is shown in a form which is simple to construct and has proved very ctiicient in practical use, and being entirely mechanical is more certain of operation than if electrical and dependent forits successful operation upon electric contacts which. are

hard tokeep clean. in a mill.

What I claim as-my invention is.:--

1. A mechanism of the kind described comprising a lay having a shuttle race: and shuttle box at each end thereof, a beam having. a stop-motion-operating mechanism located thereon and comprising a shaft having an arm mounted thereon to turn said shaft, and means for moving said arm comprising a lever mounted on saidbeam,v and. mechanism located. on said lay and normally out of register with said lever, means con nectedwith each shuttle box adapted to be operated by a shuttle in said box, whereby when both shuttle boxes contain a shuttle.

said last-named mechanism will be brought into register with and will engage said lever on: the beating-up motion of the lay to cause said lever to move said arm and operate said stopmotion to stop the loom and latching means comprising two members one attached to said lay and the other to said beam and connections between said stop motion operating mechanism and one of said members whereby it will be operated when engaging the other member and stop the lay when said stop motionis operated.

2. A smash protector comprising a breast beam, a lay carrying a shuttle box at each end thereof, each shuttle box containing a binder, two holding levers, means connected to each binder for holding them normally in holding position and allowing them to move out of holding position when a shuttle engages the corresponding binder, a rod mounted to lie parallel to the lay and normally resting on said holders and carrylng an arm, whereby when both holders are moved out of holding position said rod and said arm will drop, in combination with a stop motion mechanism located on said breast beam and comprising an arm and means adapted to move said arm to stop said loom when said first-named arm is in dropped position and means for positively locking said lay and said breast beam operable by said stop motion operating mechanism.

3. A smash protector comprising a lay carrying a shuttle box at each end thereof, and a breast beam carrying a shaft adapted to operate a stop motion and means for turning the shaft to stop the loom comprising an arm mounted on said shaft, and means adapted to move said arm comprising a hook lever having means thereon to engage said arm, and means located on said lay adapted to be operated when opposite shuttle boxes contain shuttles to engage and operate said hook lever to cause it to move said arm when the lay is on its beating-up stroke and means for locking said lay upon the operation of said stop motion connected to said hook lever and adapted to be operated thereby to lock said lay and said breast beam.

4. In a machine of the kind described,a

leased, and means operable by theentry of shuttles into two opposite shuttle boxes and the beating-up stroke of the lay whereby said hook will be placed in osition to. be engaged by the slide and the ock lever will be caused to release the slide and the slide will engage the hook.

5. In a smash protector, a lay and a breast beam, a hook connected to said lay and a slide mounted on said breast beam and adapted to engage and hold said hook, and means for operating said slide comprising a lever mounted on said breast beam and connected to said slide, a spring one end of which is connected to said breast beam and the other end to said lever, a latch adapted to engage said slide and hold it against the force of said spring, means attached to said lay adapted to release said latch, a shaft adapted to operate a stop motionand carrying an arm, and means attached to said lever and adapted to be engaged by said arm, whereby said lever and said slide will be moved and said slide will be lockedby said latch.

LOUIS N. LA FAYETTE. 

